linux-kernel - Re: [patch 10/32] linux/bits.h: fix unsigned less than zero warnings

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Date:   Sat, 27 Jun 2020 15:01:11 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Andy Shevchenko <andy.shevchenko@...il.com>,
        Rikard Falkeborn <rikard.falkeborn@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Emil Velikov <emil.l.velikov@...il.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Kees Cook <keescook@...omium.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        kernel test robot <lkp@...el.com>,
        mm-commits@...r.kernel.org,
        Syed Nayyar Waris <syednwaris@...il.com>,
        William Breathitt Gray <vilhelm.gray@...il.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [patch 10/32] linux/bits.h: fix unsigned less than zero warnings

On Fri, Jun 26, 2020 at 7:03 AM Arnd Bergmann <arnd@...db.de> wrote:
>
> How about moving that warning from W=1 to W=2?

That sounds like the right thing to do, perhaps with some extra
warnings about W=2 (and W=3) being things that you definitely
shouldn't be running in automated environments (unless you are then
very very careful to look very critically at the warnings).

            Linus